enobacon,
@enobacon@urbanists.social avatar

what if #eBikes just had a tiny capacitor pack for the regen +boost and you got a continuous 300W via inductive charging from the street

dr2chase,
@dr2chase@ohai.social avatar

@enobacon not a huge fan of in-street inductive charging, tend to assume that it will be damaged, plus will my credit cards survive? How about overhead wires with multiple pickups (like we do for "electric trolleys" only multiple so we can pass?)

In the diagram, the overhead wires don't actually need to be separate A/C phases, could just be +/- DC, too.

enobacon,
@enobacon@urbanists.social avatar

@dr2chase could we just roll the aluminum hoops uphill?

dr2chase,
@dr2chase@ohai.social avatar
largess,
@largess@mastodon.au avatar

@enobacon
We at least really need some standard port and charger and a fast charge option ah la ecars and even perhaps the ability to top up via USB C @ 100W or something with a small charger while parked up having a Coffee. I am not carting the huge charger for my Giant to facilitate long rides :(

enobacon,
@enobacon@urbanists.social avatar

0.03kWh pack (~1/10th of your e-bike's battery) of capacitors can charge or discharge at 300A (30kW) for 1s, should be plenty, ~52V unit maybe 3.5lb?

https://youtu.be/7Lm77K2eSkQ

enobacon,
@enobacon@urbanists.social avatar

I'm not sure about the steel case for the capacitor pack but dang that's quite a soldering iron.

jpanhans,
@jpanhans@toot.bike avatar

@enobacon You wouldn't need regen, just push power back onto the inductor grid as you move past the coils. The power would be transferred down the street to someone else who is in need of acceleration. Like leave a penny take a penny but for momentum.

enobacon,
@enobacon@urbanists.social avatar

@jpanhans I'm thinking the efficiency + current capacity of onboard capacitors is much greater than peak inductive delivery. The efficiency of inductive charging is not great, as I understand it, but continuous delivery of a low level of power, enough to move someone around at their average load...

enobacon,
@enobacon@urbanists.social avatar

@jpanhans what you really want is 1200W to push you up a hill for a minute or two, and somewhere to dissipate roughly that amount of power on the way down so you can keep it below 20-30mph. In my experience in SW Portland, anyway. Currently I can only get -300W of regen, it's not enough.

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